| From | Andi Kleen <> | Subject | [PATCH] [179/223] DECnet: don't leak uninitialized stack byte | Date | Mon, 13 Dec 2010 00:48:04 +0100 (CET) |
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2.6.35-longterm review patch. If anyone has any objections, please let me know.
------------------ From: Dan Rosenberg <drosenberg@vsecurity.com>
commit 3c6f27bf33052ea6ba9d82369fb460726fb779c0 upstream.
A single uninitialized padding byte is leaked to userspace.
Signed-off-by: Dan Rosenberg <drosenberg@vsecurity.com> Signed-off-by: David S. Miller <davem@davemloft.net> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de> Signed-off-by: Andi Kleen <ak@linux.intel.com>
--- net/decnet/af_decnet.c | 2 ++ 1 file changed, 2 insertions(+)
Index: linux/net/decnet/af_decnet.c =================================================================== --- linux.orig/net/decnet/af_decnet.c +++ linux/net/decnet/af_decnet.c @@ -1556,6 +1556,8 @@ static int __dn_getsockopt(struct socket if (r_len > sizeof(struct linkinfo_dn)) r_len = sizeof(struct linkinfo_dn); + memset(&link, 0, sizeof(link)); + switch(sock->state) { case SS_CONNECTING: link.idn_linkstate = LL_CONNECTING;
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